Comments for Mites? Sickness?

I bought a 8 in 1 ULTRA CARE pyrethrin spray to kill mites for birds. I sprayed the chicken and its coop. I don't think that I sprayed all feathers with mites but i sprayed the tail, wings, and back.

I also sprayed the coop sides (but not the bottom where the chicken sits)many times. The only problem is that it smells like the spray so is that harmful?

It also tells me to spray no more than twice a week. I don't think I sprayed and killed all of the mites on the chicken so should I still follow this rule?

The 4 H I contacted already replied and told me that someone may be willing to take her, but they told me to wait a week for a response. Will that be enough time or should I contact the bird rescue?Thank You!